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OpenStudy (anonymous):
v(t) = <10cos(t), -10sin(t), (2t/pi)cos(t^2)> At t=sqroot(pi/3) ball dropped down with velocity given above, what is the velocity at t>sqroot(pi/3) as in after it is falling down at a=-9.8m/sec. Also how long will it take to hit the ground and at what speed will it do so. Thanks please help.
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